CN1154196A - A radio unit and a method for connecting a fixed subscriber station to a WLL system - Google Patents
A radio unit and a method for connecting a fixed subscriber station to a WLL system Download PDFInfo
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- CN1154196A CN1154196A CN96190507.7A CN96190507A CN1154196A CN 1154196 A CN1154196 A CN 1154196A CN 96190507 A CN96190507 A CN 96190507A CN 1154196 A CN1154196 A CN 1154196A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
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Abstract
The invention relates to connecting a subscriber station of a fixed network, such as a telephone set, to a WLL system. The radio unit (10, MS) to which a WLL subscriber station is connected initiates connection and call set-up in the radio network immediately when the first digit is received from the subscriber station. Thus, the directory number of the called party is dialled simultaneously with setting up a signalling connection between the radio unit and the MSC in the radio network. The radio unit buffers the digits of the dialled directory number until the end of dialling. When the dialling has ended, the radio unit sends the directory number of the called party to the radio network (address command). As a result, the delay typically associated with the call set-up of a cellular radio network is minimized in WLL applications.
Description
The present invention relates to a subscriber board in the fixed network, for example telephone set is connected to the method and the unit of a wireless network.
When setting up common fixed telecommunications network, the most expensive and difficulty the best part is to be connected in order to the cable that each user is connected with local switch.In many cases, can be more favourable with wireless connections replacement fixed-line subscriber cable, it can be set up so that provide the user to arrive the access of public switched telephone network (PSTN) easy and quickly.User network in this case comprises a plurality of base stations as the standard radio telephone network, and they are connected with a switch and keep in touch by wireless channel and a fixed wireless unit.Correspondingly provide a common subscribers feeder by radio-cell, it might be connected with the Any user platform of fixed telecommunication system, for example is connected with a telephone set.Therefore wireless channel is transparent for the user, and it provides point-to-point to be connected between telephone set and switch.The so-called wireless local loop of this system (WLL).Because the normally expansion of standard P STN network of WLL wireless system, it also uses the standard numbering of telephone network usually.In order to make wireless connections transparent as much as possible, the call establishment that the user side from wireless connections is carried out should be similar to the call establishment in the fixed network as much as possible.
For reducing planning and expense, utilize for example pan-European mobile network GSM of existing wireless network system one (global system for mobile communications) or NMT net NMT to realize that the WLL network benefits.A WLL network even a part that can be used as the standard mobile network realize, thereby can the mobile subscriber be arranged existing WLL user again in consolidated network, yet the call setup that the call setup of being carried out by the mobile subscriber and fixed network are carried out is also inconsistent.Can how to select route at difference calling decision in an example example ground at mobile services switching centre, typically, it defines local number (Finland has been that head is the number of numeral between 2 to 8) and is meant the intercommunication phone number in the mobile network in mobile services switching centre usually.If a mobile subscriber wishes to call out the selected PSTN of arriving of route, outside the mobile network that promptly dissociates, before recipient's PSTN number, must add so and dial domestic area code (Finland is 9 numbers of taking the lead).If beat international long-distance, then according to the isdn number method, dial the specific international long-distance head in various countries (Finland is 990 or 999) earlier, then dial country code, domestic area code and recipient's number.And the telephone set from fixed network then needn't add dial area code when dialing before toll free number.In other words, the area code dialed of the user in mobile network and the fixed network is different.
The problem that causes about this point is particularly remarkable for the mobile network that standard mobile subscriber and WLL user are positioned at same base station range.At this moment, mobile network should be able to be distinguished the user's who requires different routes local number, and what is called requires different routes to be meant to require that still to require be route according to the PSTN numbering for the route in the mobile network.The purpose of this requirement is for when WLL user dials local call, can the road to choose PSTN online.Because expectation wll terminal equipment is identical with PSTN terminal equipment drive manner, to want to make a phone call so work as WLL user to a mobile subscriber in the same mobile network, that is made a phone call from PSTN as him, should add the area code of dialling mobile network before Subscriber Number.
Second point, the user of mobile network must be by special " transmission " key of the next one for activating call setup after having dialled telephone number, and must press " end " key behind end of calling.Then there is not " transmission " and " end " key on the telephone set in the fixed network.In the fixed network, the receiver that picks up the telephone (off-hook) just activates a local loop, and exchange opportunity detects this variation and produces dialing tone when the user begins to dial callee's number to local loop, and switch stops to produce dialing tone.If call setup breaks down or the callee the line is busy, switch will produce busy tone to local loop.Equally, switch also can send other signal audio frequency to local loop.
For make in the mobile network carry out call setup on big as far as possible degree with to carry out call setup consistent in the fixed network, promptly by adopting the numbering plan of fixed network, avoid using " transmission " key and " end " key, and can support the analog signal sound of the process of setting up to user's indicating call in the fixed network, thereby necessaryly between fixed telephone and antenna element, adopt interface.
European patent application 0569314 has disclosed a kind of equipment that is used for one or more ordinary telephone set couplings are received cellular wireless networks.Comprise the radio-cell that ordinary telephone set is used in this equipment.Should take phone for dialing the outgoing user, adapter can produce dialing tone after detecting the local loop closure.Can dial callee's telephone number after the user hears dialing tone, dialing tone just can cut off when dialling the first item sign indicating number.When the time that does not have a new item sign indicating number to dial in reached predetermined value, this equipment can confirm that dialing stops, and is triggered to the call setup of wireless network then.The user hangs back then phone termination of receiver.Although be to receive in the cellular wireless networks therefore, the telephone set in the fixed network still can use in the usual way.
United States Patent (USP) 4658094,4737975 and 4775997 discloses a kind of interface that is used for ordinary telephone set is connected to the transceiver of cellular wireless networks.During telephone receiver in taking fixed network, interface system will detect the closed situation of local loop, and produce dialing tone.System is the voice-frequency dialing number dialed or pulse dialing number or symbol transition a numerical data then, is stored in the transceiver.In case dial all numbers that are over, system can determine automatically when last bit sign produces, and to a transmission of transceiver generation signal.Transceiver can send to local switch to the telephone number that is transformed to bit sequence after receiving the transmission signal, and check numbers there and decode, and the route of this phone is selected to the callee.In this system, the telephone set in the fixed network also can use in the usual way.
United States Patent (USP) 5117450 discloses the cellular radiotelephone that standard telephone set a kind of and in the fixed network is connected.Comprise the detector of a closure/open-circuit condition that is used for the supervisory user loop in this cellular telephone, in case the local loop closure, it just produces a dialing tone.The DTMT detector detects, encodes and it is stored in the memory the numbers/digits of dialing with push-button telephone.If begin through five seconds from detecting last bit sign, whether cellular telephone will detect the telephone number of having dialled and can accept, whether promptly dialled the number has comprised enough sign bits or whether it is a particular phone number, for example is an emergency numbers.If the form of having dialled the number can be accepted, just the telephone number of storage is sent to Cellular Networks and triggers call setup.
Disclose in all existing technical scheme above-mentioned, up to whole telephone numbers of having dialled the callee and apart from dial down last bit sign through a scheduled time after, just set up the signaling connection on the wireless channel.After this, called number is delivered to before the switch through wireless channel, set up the signaling connection and also need certain hour, this also causes the reason of the peculiar time delay of call setup in the cellular wireless networks just, and this time delay further increases because added the cause of the time delay (5 seconds at the most) whether detecting dials finishes again.The call setup of fixed network then is provided with this time delay.For making the WLL system also similar as far as possible in this respect, the time delay that call setup in the WLL system brings should be reduced to minimum to fixed network.
In the above-mentioned prior art scheme and reckon without the numbering plan inconsistency of fixed network and cellular wireless networks, for example inconsistency of area code.
European patent application 0530010 discloses a kind of radiophone that is used for multinational mobile telephone network, and it comprises an abbreviated dialing memory.Telephone number can be input in the abbreviated dialing memory with U+M+T or K+T form, and U is the international long-distance head here, and M is a country code, and K is a country identifier, and T is long-distance head+Subscriber Number.Although also will be referred to national number, still need first of each number of dialling, to add and dial national designator C.Call out if utilize abbreviated number to set up, it is to network registry at present at which country that radiophone will at first detect it.If comprise the country code of present country of living in the telephone number corresponding to abbreviated number that recovers from memory, it just is identified as domestic call, and recovers number according to the K+T form.If the country code in the telephone number that recovers from memory is different with the code of present country of living on the contrary, telephone number will recover according to the U+M+T form, and wherein U is meant the international long-distance head of this phone to network registry state.The international long-distance number or the national number that comprise their area codes own all can only be stored in the abbreviated dialing memory.This method is not supported the WLL system.Dial local number when carrying out call setup, can only dial international long-distance or National calls usually.
United States Patent (USP) 4473720 has disclosed a kind of autodialer, and it comprises a standing part and a replaceable part.Standing part comprises location identifier, i.e. the used long-distance head in international long-distance head, country identifier, country code and above-mentioned position.Comprise in the memory of replaceable part that identical parameter and dialer can set up a telephone number of calling out with it.As for form, these telephone numbers can be toll free numbers, National Toll Number or international long-distance number.When replaceable part is connected on the standing part, dialer in the intercropping of location identifier parameter with relatively.If there are differences between parameter, dialer can be according to the telephone number in the replaceable partial memory of these parameter changes, on the contrary with its by local number change into toll number or.Dialer also can extend to fixed network, does not set up the WLL system of calling out but be suitable for by radiotelephony network.It does not consider the relevant problem of supporting to dial local number in the call setup of realizing by wireless network, thereby only may only dial national distance or international long-distance number usually.
The objective of the invention is by shortening the call set-up time in the WLL system and eliminate the inconsistent of fixed network and wireless network method for numbering serial, thus alleviation the problems referred to above.
The present invention relates to a kind of radio-cell, it is used for subscriber board of the similar telephone set of fixed network is connected with wireless network in the WLL system, wherein comprises: in order to the off-hook that detects described subscriber board and the device of hook state; In order to produce the device of signal audio frequency to described subscriber board; In order to detect the detector of the dialing of receiving from described subscriber board, for example detect the dialing of relevant called number; Radio-cell is arranged the called number that measures with buffering, finishes just to send it to wireless network up to dialing.Wireless system according to the present invention is characterized in that, to detecting first dialing or the multidigit dialing is reacted, is arranged to trigger connection and call setup in the wireless network.
The invention further relates to a kind of being used for and set up the method for calling out from a such fixed subscriber station of telephone set, this subscriber board is connected with the radio-cell of wireless system in the WLL system.This method comprises the steps: that the user of a fixed subscriber station dials callee's telephone number, and described number is made of multidigit; Radio-cell detects the called number dialing from the reception of fixed-line subscriber; Radio-cell cushions described dialing to be finished up to dialing; After dialing finished, radio-cell sent to called number in the wireless network.This method according to the present invention is characterized in that, detects before dialing finishes after first dialing or the multidigit dialing, and radio-cell triggers connection and the call setup in the wireless network immediately.
The invention further relates to a kind of WLL system, it comprises a wireless network and a radio-cell, utilizes the latter to realize being connected of the such fixed subscriber station of telephone set and wireless network.Comprise in the radio-cell: in order to the off-hook of detection fixed subscriber station and the device of hook state; In order to produce the device of signal audio frequency to fixed subscriber station,, for example detect the dialing of relevant called number in order to detect from the detector of the dialing of fixed subscriber station reception; Radio-cell is arranged callee's number of recording in order to buffering, finishes just to send it to wireless network up to dialing.System according to the invention is characterised in that: radio-cell utilizes the call setup order that does not comprise called number to measuring first dialing or multidigit dialing as reaction, triggers connection and call setup in the wireless network; And wireless network have only from user data, detect the call setup order that does not contain called number of having received subscriber board after, wireless network just is arranged to trigger call setup; Radio-cell sends callee's telephone number after a while to wireless network in address message during dialing end, call setup; After wireless network was received described address message, according to callee's telephone number, it was selected to trigger the calling route.
Among the present invention, when subscriber board was dialed first bit digital of called number or character, the radio-cell that is connected with fixed subscriber station triggered continuing and call setup in the wireless network immediately.Therefore, when dialing called number, the call establishment of wireless network is set up radio-cell and is connected with the signaling of inter-exchange.Radio-cell with till the symbol in dialing the number is buffered to dialing and finishes.After dialing finished, radio-cell just was sent to wireless network with called number.When detecting last bit sign, can suppose that just dialing finishes through the scheduled time or when detecting digital that indication dialing finishes.If judgement dialing end is to carry out on the process basis of the scheduled time apart from receiving last bit sign, this scheduled time can be several seconds, sets up the risk that this benefit of time has been saved in the signaling connection when losing because of dialing thereby that will emit.If the user is by next preset key, for example " # " indicates dialing to tie, just the required time of call setup can maintain minimum value.Whether finish if adopt above-mentioned two kinds of methods to detect dialing simultaneously, so not only may call out and get the time, and when the user forgets the character of dialing indication dialing end, can guarantee that still the smooth and easy of call setup carries out because of quick foundation.In preferred implementation of the present invention, connect and before dialing finishes, to carry out except setting up signaling, actual call setup also can finish be triggered prior to dialing, and this is to utilize to send the call setup message that does not comprise called number from radio-cell to wireless network and realize.Call set-up time during based on this scheme can shorten to the call set-up time of setting up the signaling connectivity scenario when dialling less than only adopting.If set up the method that signaling connects when only adopting dialing, call setup message just is issued after finishing whole telephone numbers up to dialling, thereby causes preceding another of call setup than long delay.If the part process of relevant call setup is carried out during dialling, and telephone number sends with independent address message after a while, the peculiar time delay of cellular wireless networks call setup just can reduce greatly.
As described below, can realize supporting local number in the fixed network according to preferred implementation of the present invention.Mobile services switching centre is chosen the local number road in the address message among the PSTN automatically.In other words, mobile switching centre directly concludes from the use of address message and relates to a WLL user, and local number also refers to the PSTN number.Because adopt the method, WLL user can dial phone number according to the method for numbering serial of fixed network, the road that switch is carried out selects process then to remain unchanged, for example just can be like this in gsm system.In other words, the mobile subscriber also adopts the call setup degree of standard and the call setup message of standard.
To utilize preferred implementation of the present invention below and introduce the present invention in greater detail with reference to the attached drawings.
In the accompanying drawings:
Figure 1 shows that based on WLL wireless system of the present invention;
Figure 2 shows that the block diagram of WLL subscriber board among the present invention, it comprises 14, one adapters of a telephone set in the fixed network and a terminal equipment MS in the wireless network;
Fig. 3 be gsm system when outgoing call, the signaling diagram of signaling is set up in standard call;
Fig. 4 is the signaling diagram of the call set up signaling during according to outgoing call of the present invention;
Fig. 5 is for setting up the workflow diagram of adapter 10 under the outgoing call situation according to the present invention;
Fig. 6 is for setting up the workflow diagram of MS under the outgoing call situation according to the present invention;
The structure that Figure 7 shows that " called number "-set up information unit in the message related to calls is formed; And
Fig. 8 forms according to the structure of address message of the present invention.
The present invention is applicable to any wireless system that satisfies following situation, and promptly it is by replacing such fixed telecommunication network of telephone network and the cable user line between its user, realizing that the wireless user in the wireless local loop system (WLL) connects.Accompanying drawing 1 is the schematic diagram based on WLL of the present invention system, and the WLL system realizes on the basis of the wireless network that uses prior art-as GSM.The part that the WLL system can be used as conventional mobile radio communication realizes, thereby not only WLL user can be arranged but also the mobile subscriber can be arranged in consolidated network.
Below with reference to the WLL net that is based upon on the pan-European digital mobile communication network GSM basis, introduce the present invention with case method, but the present invention is not limited to this.
Wireless system shown in Figure 1 comprises a mobile services switching centre MSC, a base station controller BSC, base station BTS and WLL subscriber board 3,4.For the purpose of clear, a base station controller only is shown among Fig. 1, two base stations and a subscriber board never end these certainly in the network of reality.Similar with the wireless telephone exchanger of routine, MSC comprises that also a change over switch that is used for relayed call, one are used to control between subscriber board and the wireless network call control computer in call setup, dialogue and all signalings of end of calling process, MSC is for realizing wireless the continuing to the call distribution wireless channel between BTS and the subscriber board 3,4.MSC in the wireless system receives public switched telephone network PSTN2 by 5, receives PSTN user 1 by the latter again, or to other network 10 and their user.The local switch that MSC can be used as in the PSTN net is directly carried out, and BTS also can be used as ordinary base station with same way as and carry out.Naturally comprise a plurality of transceivers in its elementary cell, concrete number is then determined by desired traffic capacity.
WLL subscriber board generally includes domestic consumer's platform in a radio-cell 3 and the fixed network, for example telephone set 4, a facsimile machine or a data modulator-demodulator etc.Radio-cell 3 provides standard analog two-wire subscriber's line as the interface unit towards wireless channel to the user, and this circuit is connected on user's the ordinary telephone set 4.Describe the structure of radio-cell in detail below in conjunction with Fig. 2.
The WLL subscriber board has fixing position usually in the WLL system.The MSC of WLL system the telephone number of subscriber board can be linked the band of position that forms by one or more base stations should the zone in the residing coverage of subscriber board.When end call was appearred in Subscriber Number, MSC only began the calling user platform by wireless channel in the above-mentioned BTS area of coverage or the band of position.Because the supposition subscriber board is in a fixed position, does not require mobile management function and position update functions in the WLL system, although these functions are parts of standard mobile radio communication.But must comprise at least one customer data base in the wireless system, for example receive the visitor location register VLR of MSC, it is used for remaining in relevant user data in the MSC scope.
Shown in Figure 2 is according to radio-cell 3 of the present invention, and it comprises a terminal equipment and an adapter 10 of wireless system MS.Adapter 10 is to be connected with the such PSTN subscriber board of telephone set 4, and a conventional simulation two-wire PSTN subscriber line interface 11 is provided.Direct voltage source 12 provides the required direct voltage of the local loop in the subscriber line interface (for example 12V, 24V or 48V).The disconnection of off-hook/on-hook detector is used for detecting the closed situation of local loop when the user picks up the telephone receiver (off-hook) and user when putting back to receiver (on-hook) local loop.Signal audio-frequency generator 14 produces required signal audio frequency in the subscriber line interface 11, the different conditions in using indicating call.These signal audio frequency comprise such as dialing audio frequency, busy tone, ring back tone etc.Ringing voltage generator 16 produces ringing voltage to subscriber line interface 11, thereby provides bell signal to telephone set 4 when incoming call is arranged.Detector 15 will detect the Dual Tone Multifrequency diallable symbol of binary form, and be sent to controller 16 and be for further processing.If telephone set 4 adopts pulse dialing, detector 15 also can be a pulse dialing detector so.Every all available known basic skills among the module 11-16 realizes that the example of realization can be referring to the explanation of United States Patent (USP) 4737975 and 5117450.Adapter 10 also comprises a microcontroller 17, and detector 13 and 15 output result deliver to microcontroller 17 to be for further processing, and it is also controlling the operation operation of signal audio-frequency generator 14 and ringing voltage generator 16.Controller 17 comprises a control interface 22, to radio-cell MS Sending dialled number symbol and control signal and to receive control signal from radio-cell MS all be to be undertaken by this interface.
Radio-cell MS provides wireless connections and relevant all signalings of carrying out wireless connections with wireless system with wireless network BTS.Realize the WLL system based on wireless system in, radio-cell MS is a very favourable terminal equipment.In the above-mentioned disclosed situation of giving an example, radio-cell MS is a terminal equipment of gsm system, for operating according to the present invention it has been done improvement, will illustrate below this point.In the block diagram shown in Figure 2, radio-cell MS only comprises description primary element essential to the invention.Transceiver Module 18 comprises a transmitting set and a receiver, and modulation and detection interleave and go to interleave, chnnel coding and decoding, speech coding, speech decoding or the like.The audio/data port 24 of transceiver 18 is connected to the subscriber line interface 11 of adapter 10.Transceiver 18 is modulated to the audio/data signal that port 24 receives on the radio frequency, and by antenna 21 radiofrequency signal is sent to base station BTS.Correspondingly, transceiver 18 also will be demodulated into base-band audio/data-signal from the radiofrequency signal that BTS receives, be applied to subscriber line interface 11 via port 24 again.The operation of microcontroller 20 control radio-cell MS.Controller 20 also produces the signaling message that sends to wireless system via transceiver 18, and will decode from the signaling message through transceiver 18 that wireless system is received.Be connected by control interface 22 between the controller 17 of controller 20 and adapter 10, diallable symbol and control signal are all passed through thus.Receive in addition and also have a buffer storage 25 and a timer 23 on the controller 20, buffer storage 25 is used for temporary transient memory dialing symbol, and whether 3 of timer 2s are used for detecting dialing finishes, and will be set forth below.
Fig. 3 is in the call setup that user side is carried out, and according to GSM suggestion 04.08, version is the signaling diagram of the signal command that 4.7.0 adopted.As mentioned above, only press " transmission " key table in the mobile communication system and show that callee's number dialled, just can trigger this signaling.This causes producing the peculiar calling establishment time delay of mobile radio communication.In existing technical scheme, when fixed telephone is received terminal identity of mobile communication system, only dialed number and through a scheduled time after, just can trigger signaling and connect and call out.The combined effect of these factors will cause quite long time delay in the call setup.Trigger call setup immediately after employing detects first dialing among the present invention, shortened calling establishment time delay.And, set up order and be divided into two parts so that further shorten calling establishment time delay according to the present invention.4-8 sets forth in more detail based on the call setup under the situation of the present invention below with reference to the accompanying drawings.
Shown in Figure 5 is the workflow diagram of adapter 10 among Fig. 2.The closure (off-hook) of local loop and open circuit (on-hook) state (the 501st step) in the detector 13 supervisory user line interfaces 11 in the adapter 10.When phone receiver 4 by off-hook, local loop closure (off-hook), controller 17 command signal audio-frequency generators 15 produce dialing tones (the 502nd step) to subscriber line interface 11.In the 503rd step, the user who waits phone 4 dials down the first item sign indicating number (numeral or character) afterwards.When detector 15 detects first is the DTMF number, just corresponding binary value is outputed to controller 17, the latter can produce " transmission " signal (the 504th step) to the controller 20 of radio-cell MS, simultaneously to the detected first item sign indicating number of controller 20 transmission.Then, begin wait and receive second dialing (the 505th step).In case controller 17 is received the second item sign indicating number of dialling in, just this number is delivered to controller 20 and timer 23 is resetted (the 506th step), timer just opening entry from receiving the second item sign indicating number elapsed time.Whether 17 checks of the 507th step controller receive new one dialing.If do not receive, controller 17 can check the reading of timer 23 whether to reach predetermined delay time T1 (the 508th step), then do not return for the 507th step if also reach the scheduled time, if timer 23 has reached scheduled delay T1, promptly passed through time T1 apart from dialing an item sign indicating number, controller 17 will suppose that dialing finishes, and produces " dialing a finishes " signal to the controller 20 of radio-cell.
Whether if receive a new digit at the 507th step controller, will check it is the special book character (the 509th step) that indication dialing that the user dials finishes.Use " dialing finishes " symbol to carry out can be because of dialing the time to set up signaling to connect with calling out and bring maximum benefit.Thought just that through the scheduled time dialing finishes if just adopt, can lose quite a few just set up the interests that calling won simultaneously because of dialing so when measuring apart from dialing an item sign indicating number.And in the preferred implementation of the present invention,, comprising a timer 23 too except " dialing finishes " symbol, the latter forgets the contingency user when dialing " dialing finishes " symbol, ensures at the latest to begin to set up calling behind the elapsed time T1.In this preferred implementation of the present invention, " dialing finishes " symbol is represented with character " # ".Because " # " can not appear in the telephone number, in the auxiliary activities order, also just appear at first or second or last position, therefore " # " is only for this purpose.Check " dialing finish " symbol only carries out the 3rd and position after its among the present invention, thus be positioned at first or deputy " # " can not cause any problem.If the auxiliary activities order with " # " ending, will " # " not dialled last twice yet.
If that bit sign in the check of the 509th step is not character " # ", controller 17 just is sent to controller 20, and then controller 17 turned back to for the 506th step.Controller 17 will be received new sign bit in loop (506,507,508 and 509) relaying continued access, until timer 23 then or till receiving termination character " # ".
Fig. 6 be according to the present invention in the call establishment of outgoing call, the workflow diagram of radio-cell MS.In the 601st step in Fig. 6, the controller 20 of radio-cell waits " transmission " signal that transmits from the controller 17 of adapter 10.In case controller 20 is received " transmission " signal through control line 22, just trigger the program (the 602nd step) of setting up signaling and connecting and call out immediately.Comprise in these programs as shown in Figure 4, advise the radio-cell of 04.08 edition 4 .7.0 and the signaling between the wireless network according to GSM.For the situation of call setup successfully, signaling comprises following message: " channel request ", " distributing immediately ", " CM service request " " are differentiated request ", " differentiating response ", " cipher mode command ", " cipher mode is finished " and their " foundation " message afterwards.With regard to " foundation " message, signaling of the present invention and GSM advise that 04.08 is different.Advise according to GSM, called number is sent to MSC in said " foundation " message, the information of same relevant request service then is sent out away in Bearer Capability Information Element, is defined in GSM suggestion 04.08 about this point, edition 4 .7.0 is among Figure 10 .71-10.79.And according to the present invention, for WLL subscriber board situation, because send channel request message immediately behind the first item sign indicating number and begin call set up signaling from dialling down, thereby might be when signaling have proceeded to the step of transmission " foundation " message, also do not dialled callee's Subscriber Number, i.e. this number or the unknown.Yet for the normal call situation, because the information stores of relevant " bearing capacity " parameter of WLL subscriber board is in the such GSM subscriber board of radio-cell, the information of relevant requested service can obtain.If the WLL subscriber board comprises a more than interface, for example for the distinct interface of speech and data, " bearing capacity " parameter of each interface can dispose separately so.The interface used according to wll terminal, radio-cell are that " foundation " message is selected corresponding " bearing capacity " parameter.Can judge that from the first symbol of being dialled it is the situation of normal call or auxiliary activities order.If the first character (symbol) is a numeral, that is exactly the situation of normal call.
Therefore in " foundation " message of carrying out according to the present invention, except not comprising callee's telephone number, it may comprise that GSM advises distinctive every other information.According to GSM suggestion 04.08, edition 4 .7.0, Figure 10 .73, called number transmit in " callee BCD number " information unit usually.This information unit has drawn among Fig. 7.The length of this information unit is at least 3 eight bit groups, is at most 13 eight bit group called numbers and transmits in 4-13 eight bit groups usually.When 4-13 eight bit groups of information unit were omitted fully, called number also can be omitted from information unit, and this moment, type field was changed to 000 (the unknown), and the method for numbering serial identifier is changed to 0000 (the unknown).These definition are consistent with the GSM suggestion, and they are in GSM suggestion 04.08, and edition 4 .7.0 has explanation in the table 10.81.
Referring to Fig. 4, according to after suggestion " foundation " message of GSM for following message: " calling is carried out ", " assignment commands " and " having assigned " have been radio-cell MS when last one goes on foot with MSC between be connected and reserve a service channel.
When above-mentioned signaling procedure carries out, the controller 20 of radio-cell is received a symbol of dialing (the 603rd step of Fig. 6) from adapter 10 at every turn, it is recorded in (the 604th step) in the buffer storage 25, and whether check receives " dialing finishes " signal (the 605th step) from adapter 10.
Fig. 8 is that a kind of of " address command " message may structure." foundation " classes of messages that defines among " address command " message shown in Figure 8 and GSM suggestion 04.08, edition 4 .7.0, the table 9.70a is seemingly distinguished and is that " address command " message includes only two information units; Promptly according to GSM suggestion 04.08, edition 4 .7.0, " the callee BCD number " information unit of Figure 10 .73 and according to " called party subaddress " information unit of Figure 10 .74.Wherein second information unit can be selected, and it only in particular cases gives requirement at some." address command " message comprises call control protocol authenticator=0011 in addition, a manipulation designator=0XXX (wherein X is by radio-cell MS definition) and an independent type of message, the organization definition of the call setup message of it and other is similar, for 0X001100 (sees GSM suggestion 04.08, edition 4 .7.0, table 10.3).In this figure, IEI representative information unit indicator.
After receiving above-mentioned " address command " message, it is selected to callee's calling route that MSC is arranged deexcitation according to callee's Subscriber Number.In addition, in the signaling between radio-cell MS and wireless network, the standard message that is used for finishing call setup according to the suggestion of GSM is sent out after " address command " message, and these standard message comprise that as shown in Figure 4 " calling is carried out ", " alarm ", " connection ", " CONNect Acknowledgement " are several.
When carrying out normal call from fixed subscriber station and set up, only can dial international long-distance or National Toll Number usually.But according to preferred implementation of the present invention, can realize just supporting fixed network to dial local number that concrete mode is as follows: MSC is selected to PSTN for the local number route that is included in " address command " message automatically.In other words, MSC directly determines from the use of " address command " message and relates to a WLL user, and definite local number means the PSTN number.Common mobile subscriber then adopts the call setup procedure of standard and the conversation of standard to set up message.Therefore just can to conclude related based on call setup message be a mobile subscriber to MSC, and local number means the intercom number of mobile network.Because adopt this scheme, WLL user can dial phone number according to the method for numbering serial that uses in the fixed network, the routing procedure that MSC carries out then still remains unchanged, and for example is like this in the gsm system.
At last a kind of special circumstances will be discussed, when the head from subscriber board 4 dialing numbers when being the character of a numeral but other, just illustrates that it is an auxiliary activities order.At this moment, the same with mode shown in Figure 4, begin to set up calling immediately after in adapter 10, detecting first bit sign (character), and generation " transmission " signal, but after sending " foundation " message, have only when controller 20 is received " dialing a finishes " signal from adapter 10 after, radio-cell MS just sends to MSC with " equipment " or " registration " message of relevant auxiliary activities.Why so be because before having dialled all characters and which kind of auxiliary activities what do not know to consider be.The end position of auxiliary activities order often is " # ", thereby not only produces " dialing finishes " signal, it also inevitable with the auxiliary activities order everybody store other.In addition, because the auxiliary activities order usually must utilize regularly to monitor and can not trigger " dialing finishes " signal with " # " ending.Using regularly monitoring only is not use position, end " # " just to interrupt before guaranteeing interrupt call foundation under the situation of dialing the contingency user.Do not follow " address command " message when sending the auxiliary activities order.As an alternative, include a so-called facility information element in " foundation " message, GSM suggestion 04.08, edition 4 .7.0 has explanation to this among the clause 10.5.4.15.And MSC might further determine it whether the information of relevant auxiliary activities configuration to be sent to the switch of PSTN net again with signal form, or this information stores will do not advanced in its database.
Beginning to this involved accompanying drawing and explanation from this paper only is to be used for describing the present invention.Although with reference to several special execution modes the present invention has been made explanation, but must recognize that this explanation only is to adopt method for example to provide, should be included in and do not break away from the scope of the present invention that illustrates in the appended claims and change and the improvement under the marrow situation.
Claims (11)
1. be used for being connected and fixed a subscriber board (4) of net, a kind of radio-cell of telephone set and WLL system wireless net for example, this radio-cell (10, MS) comprise
In order to the off-hook that detects said subscriber board and the device (13) of hook state;
In order to produce the device (14) of signal audio frequency to said subscriber board;
In order to detect diallable symbol from said subscriber board-such as the detector (15) of the symbol of relevant called number;
This radio-cell is arranged to cushion the called number symbol that records, and just sends it to wireless network after dialing finishes, and it is characterized in that
In response to first diallable symbol that records or multidigit diallable symbol, radio-cell is arranged to trigger connection and the call setup in the wireless network.
2. according to the radio-cell of claim 1, it is characterized in that
Comprise one in order to measuring from detecting the timer (23) of the last symbol elapsed time of dialling,
When the time that timer (23) is measured reached the scheduled time, radio-cell was arranged to send to wireless network the symbol of called number.
3. according to the radio-cell of claim 1 or 2, it is characterized in that: when the 3rd arbitrary the dialing of dialling or recording afterwards was predetermined dialing, radio-cell was arranged to send the called number symbol to wireless network immediately.
4. according to claim 1,2 or 3 radio-cell, it is characterized in that
Be arranged to trigger the call setup in the mobile radio communication with the call setup order (Fig. 7) that does not comprise called number,
After being arranged at the dialing end, in additional address message, send called number.
5. one kind in order to from setting up the method for calling out such as the fixing subscriber board of such one of telephone set, and this subscriber board is connected with the radio-cell of a WLL system wireless net, and this method comprises the steps:
The user of fixed subscriber station dials called number, and this telephone number is made of several bit signs,
Radio-cell detects the described diallable symbol of the relevant called number that receives from fixed subscriber station,
Radio-cell is buffered to described diallable symbol till the dialing end,
Dialing finishes the back radio-cell called number is sent to wireless network, it is characterized in that,
After dialing finished before measurement to the first diallable symbol or multidigit diallable symbol, radio-cell triggered connection and the call setup in the wireless network immediately.
6. according to the method for claim 5, it is characterized in that,
Radio-cell is measured distance and is detected bit sign institute elapsed time,
When the time that records reached a scheduled time, radio-cell supposition dialing finished.
7. according to the method for claim 5 or 6, it is characterized in that,
The user dials a predetermined symbol and indicates dialing to finish,
If the 3rd diallable symbol or arbitrary diallable symbol thereafter are described predetermined symbols, radio-cell sends called number to wireless network immediately.
8. according to claim 5,6 or 7 method, it is characterized in that,
Radio-cell triggers call setup with a call setup order that does not comprise called number in wireless network,
Wireless network only from user data, detect receive that the customer call that does not comprise called number is set up order after, trigger call setup,
During the terminated call foundation of dialling, radio-cell sends callee's telephone number after a while to wireless network with address message.
Wireless network triggers call route selecting according to called number after receiving described address message.
9. method according to Claim 8 is characterized in that,
Local number in the identification address message is as the local number in the fixed-line telephone network, and for to carry out Route Selection to the calling of fixed network.
10. claim 8 or 9 method is characterized in that,
Call setup order according to GSM suggestion 04.08 is " foundation " message, and wherein the symbol of relevant called number is omitted from callee BCD number information unit, and the value of type field value and numbering plan identifier all is made as the unknown.
According to GSM suggestion 04.08, the address command that is included in " foundation " message comprises the following message unit at least: call out the control authenticator, manipulation designator, type of message and called party subaddress.
11. a WLL system, comprise a wireless network and radio-cell (10, MS), utilize the latter a fixed subscriber station, for example a telephone set is connected on the wireless network, this radio-cell comprises
In order to the off-hook of detection fixed subscriber station and the device (13) of hook state,
In order to the device (14) of the subscriber board in fixed network (1) generation signal audio frequency,
Be used for detecting the detector (15) that is received from fixed subscriber station (1), for example such as the diallable symbol of the symbol relevant with called number
Radio-cell be arranged will record the called number buffering be kept at buffer (25) so that after dialing finishes, send it to wireless network (BTS, BSC MSC), is characterized in that,
Radio-cell is reacted to detecting first diallable symbol or a plurality of symbol, utilizes connection and call setup in call setup order (Fig. 7) the triggering wireless network that does not comprise called number,
Arrange wireless network only to receive and do not comprise called number after interior subscriber board call setup order that it just triggers call setup from user data (VLR), detecting,
During dialing finished the back call setup, radio-cell was arranged to send to wireless network after a while callee's telephone number in address message (Fig. 8), and
After receiving said address message, wireless network is arranged to go to trigger call route selecting according to called number.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI951718 | 1995-04-11 | ||
| FI951718A FI101028B (en) | 1995-04-11 | 1995-04-11 | A method for connecting a fixed network subscriber device, such as a telephone set, to a WLL system, as well as a radio unit and a radio network implementing the method. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1154196A true CN1154196A (en) | 1997-07-09 |
| CN1084128C CN1084128C (en) | 2002-05-01 |
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ID=8543222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96190507A Expired - Fee Related CN1084128C (en) | 1995-04-11 | 1996-04-09 | A radio unit and a method for connecting a fixed subscriber station to a WLL system |
Country Status (9)
| Country | Link |
|---|---|
| CN (1) | CN1084128C (en) |
| AU (1) | AU5277796A (en) |
| BR (1) | BR9606310A (en) |
| CZ (1) | CZ288035B6 (en) |
| FI (1) | FI101028B (en) |
| HU (1) | HU219082B (en) |
| PL (1) | PL179919B1 (en) |
| SK (1) | SK158296A3 (en) |
| WO (1) | WO1996032824A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466496C (en) * | 2003-02-13 | 2009-03-04 | 三星电子株式会社 | Apparatus and method for fast call setup in a mobile communication system |
| CN101572753B (en) * | 2009-04-04 | 2011-08-24 | 杭州诚智天扬科技有限公司 | Implementation method of fixed wireless phone system platform based on improved fixed wireless phone terminal |
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| FI103169B1 (en) * | 1995-11-24 | 1999-04-30 | Nokia Telecommunications Oy | Method of establishing a telecommunications connection |
| CN1211370A (en) * | 1996-10-25 | 1999-03-17 | 北方电讯有限公司 | Simulating changes in telephone subsriber line |
| CA2188844A1 (en) * | 1996-10-25 | 1998-04-25 | David Arnold Pepper | Simulating Changes in Telephone Subscriber Line |
| AU5219398A (en) * | 1996-12-18 | 1998-07-15 | Northern Telecom Limited | Method of passing a pbx station directory number over an air interface |
| US6075985A (en) * | 1997-01-23 | 2000-06-13 | Nortel Networks Corporation | Wireless access system with DID and AIOD functions |
| US6032034A (en) * | 1997-04-28 | 2000-02-29 | Nokia Mobile Phones Limited | Complete dialed number detection in WLL terminal without specified time delay |
| US5991641A (en) * | 1997-06-06 | 1999-11-23 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for providing cellular radio service to standard analog terminals |
| US6035215A (en) * | 1997-06-06 | 2000-03-07 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for providing cellular radio service to standard analog terminals |
| US6892079B1 (en) | 1997-09-01 | 2005-05-10 | Nokia Networks Oy | Procedure for setting up a call in a wireless local loop |
| FI974584A0 (en) | 1997-12-19 | 1997-12-19 | Nokia Telecommunications Oy | Accelererad samtalsuppkoppling |
| SE517204C2 (en) * | 1998-01-30 | 2002-05-07 | Ericsson Telefon Ab L M | Method and apparatus for establishing an encrypted connection in a mobile telephone system |
| US6240277B1 (en) * | 1998-03-04 | 2001-05-29 | Ericsson Inc. | Cellular phone with cancel function for fixed terminal dialing |
| GB2343587B (en) | 1998-11-05 | 2001-06-06 | Ericsson Telefon Ab L M | Sending dialled number |
| US6907273B1 (en) | 2000-07-07 | 2005-06-14 | Openwave Systems Inc. | Method and system for processing overloaded keys of a mobile device |
| US7792484B2 (en) * | 2001-07-05 | 2010-09-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Arrangement and a method in a telephony system permitting communication using a stationary telephony terminal via a mobile radio telephone |
| EP1683289A4 (en) * | 2003-11-12 | 2011-06-22 | Verizon New York Inc | Communications device for a wireless and land-line network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL93889A0 (en) * | 1989-05-10 | 1990-12-23 | Motorola Inc | Cellular telephone with standard telephone set |
| ES2043550B1 (en) * | 1992-05-07 | 1994-07-01 | Amper Sa | EQUIPMENT FOR COUPLING A CELL RADIOTELEPHONY NETWORK OF ONE OR SEVERAL CONVENTIONAL TELEPHONE DEVICES. |
| CO4180414A1 (en) * | 1993-08-31 | 1995-06-07 | Bellsouth Corp | RADIO TELEPHONE COMMUNICATIONS SYSTEM WITH DIRECT ACCESS TO LINKS CIRCUITS BETWEEN OFFICES AND INTERFACE CIRCUIT FOR THIS PURPOSE |
-
1995
- 1995-04-11 FI FI951718A patent/FI101028B/en active
-
1996
- 1996-04-09 HU HU9603421A patent/HU219082B/en not_active IP Right Cessation
- 1996-04-09 CN CN96190507A patent/CN1084128C/en not_active Expired - Fee Related
- 1996-04-09 AU AU52777/96A patent/AU5277796A/en not_active Abandoned
- 1996-04-09 WO PCT/FI1996/000185 patent/WO1996032824A1/en active IP Right Grant
- 1996-04-09 SK SK1582-96A patent/SK158296A3/en unknown
- 1996-04-09 PL PL96317645A patent/PL179919B1/en unknown
- 1996-04-09 BR BR9606310A patent/BR9606310A/en not_active IP Right Cessation
- 1996-04-09 CZ CZ19963626A patent/CZ288035B6/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466496C (en) * | 2003-02-13 | 2009-03-04 | 三星电子株式会社 | Apparatus and method for fast call setup in a mobile communication system |
| CN101572753B (en) * | 2009-04-04 | 2011-08-24 | 杭州诚智天扬科技有限公司 | Implementation method of fixed wireless phone system platform based on improved fixed wireless phone terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| HU219082B (en) | 2001-02-28 |
| FI951718A0 (en) | 1995-04-11 |
| HU9603421D0 (en) | 1997-02-28 |
| FI951718A (en) | 1996-10-12 |
| PL317645A1 (en) | 1997-04-14 |
| FI101028B (en) | 1998-03-31 |
| HUP9603421A2 (en) | 1998-01-28 |
| AU5277796A (en) | 1996-10-30 |
| CZ362696A3 (en) | 1997-05-14 |
| HUP9603421A3 (en) | 1999-07-28 |
| MX9606303A (en) | 1998-06-28 |
| CZ288035B6 (en) | 2001-04-11 |
| BR9606310A (en) | 1997-09-16 |
| PL179919B1 (en) | 2000-11-30 |
| CN1084128C (en) | 2002-05-01 |
| SK158296A3 (en) | 1998-10-07 |
| WO1996032824A1 (en) | 1996-10-17 |
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